Inter-device power management for audio/video equipment
01 Jan 2011-
TL;DR: This paper presents an overall architecture for how power state could be managed automatically in the future to both increase user amenity as well as reduce energy use.
Abstract: Electronics are an increasing fraction of electricity use in buildings, with those devices that support audio and visual display one of the largest portions. Collections of interconnected A/V devices in buildings are becoming larger as they become networked to A/V devices in other rooms, to traditionally IT devices, to non-electronic devices, and to the Internet. Managing the power state of such connected devices is increasingly difficult, resulting in user confusion and wasted energy. This paper presents an overall architecture for how power state could be managed automatically in the future to both increase user amenity as well as reduce energy use.
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TL;DR: The SEAD initiative aims to transform the global market by increasing the penetration of highly efficient equipment and appliances as discussed by the authors, which is a government initiative whose activities and projects engage the private sector to realize the large global energy savings potential from improved appliance and equipment efficiency.
Abstract: The SEAD initiative aims to transform the global market by increasing the penetration of highly efficient equipment and appliances. SEAD is a government initiative whose activities and projects engage the private sector to realize the large global energy savings potential from improved appliance and equipment efficiency. SEAD seeks to enable high-level global action by informing the Clean Energy Ministerial dialogue as one of the initiatives in the Global Energy Efficiency Challenge. In keeping with its goal of achieving global energy savings through efficiency, SEAD was approved as a task within the International Partnership for Energy Efficiency Cooperation (IPEEC) in January 2010. SEAD partners work together in voluntary activities to: (1) ?raise the efficiency ceiling? by pulling super-efficient appliances and equipment into the market through cooperation on measures like incentives, procurement, awards, and research and development (RD (2) ?raise the efficiency floor? by working together to bolster national or regional policies like minimum efficiency standards; and (3) ?strengthen the efficiency foundations? of programs by coordinating technical work to support these activities. Although not all SEAD partners may decide to participate in every SEAD activity, SEAD partners have agreed to engage actively in their particular areas of interest through commitment of financing, staff, consultant experts, and other resources. In addition, all SEAD partners are committed to share information, e.g., on implementation schedules for and the technical detail of minimum efficiency standards and other efficiency programs. Information collected and created through SEAD activities will be shared among all SEAD partners and, to the extent appropriate, with the global public. As of April 2011, the governments participating in SEAD are: Australia, Brazil, Canada, the European Commission, France, Germany, India, Japan, Korea, Mexico, Russia, South Africa, Sweden, the United Arab Emirates, the United Kingdom, and the United States. More information on SEAD is available from its website at http://www.superefficient.org/.
44 citations
03 Mar 2011
TL;DR: In this paper, the authors present baseline information about how much energy is used by all electronics, how it is distributed, and how networks drive energy use, and network-related methods to reduce energy use of these devices.
Abstract: The energy use of electronics has been rising in the last several decades, driven by enormous innovation in computation, display, storage, and communication technologies. Networks and communication play a special role in that they cause the functional (and hence energy) state of devices to be linked. This paper presents baseline information about how much energy is used by all electronics, how it is distributed, and how networks drive energy use, and network-related methods to reduce energy use of these devices.
7 citations
TL;DR: This work proposes a solution to reduce the networked standby power down to zero virtually, regardless of the network type, and implements an experimental home A/V system which is integrated with an ultra low power wireless signal receiver and extended UPnP protocol.
Abstract: Energy conservation is an important global issue. The home is the third largest energy consumer, and 10% of the home energy use is standby power of home appliances. The proliferation of home networks increases the standby power. The conventional technologies for low networked standby power such as WoL require continuous AC power, as much as 0.5 watts, to monitor wake-up signals. A large portion of the consumed power is due to the power loss in the AC-DC converter. Moreover, the technologies are applicable only to the specific network types such as Ethernet and IEEE802.11. We propose a solution to reduce the networked standby power down to zero virtually, regardless of the network type. For monitoring wake-up signals, the solution utilizes the pre-charged power in an ultra capacitor without using the AC power supply for almost all the time. In order to realize this idea, the solution also utilizes a unique and simple protocol dedicated only to the networked standby/wake-up functionality. This protocol enables the monitoring circuit to consume a very small amount of power, small enough for the capacitor to supply. The networked standby/wake-up functionality is easily combined with any conventional network application protocol by protocol address mapping. As one realization example of our solution, we implemented an experimental home A/V system which is integrated with an ultra low power wireless signal receiver and extended UPnP protocol. The system evaluation showed that our solution achieves the zero-watt networked standby while keeping network functionalities. Moreover, the analysis of the results based on a statistical survey shows that the practical networked standby power is 30 mW when our solution is applied to a TV system, which corresponds to one seventeenth of a conventional technology, WoL. It means that our solution improves power consumption by 22% which corresponds to 1.11 kg-CO2 emission reduction per year per product.